SN74LVC2G17-Q1: ELV, leadfram material and thickness

Part Number: SN74LVC2G17-Q1


Hi team, 

Could you share following material / width information and if specific certification follows on SN74LVC2G17QDCKRQ1? 

(1) ELV: www.ti.com/.../szzq125c.pdf

(2) What is lead frame surface plating material? How much its thickness is?

(3) What is lead frame underlayer plating material? How much its thickness is?

(4) What is lead frame base material?

Regards,
Ochi